feat(android): M-Cross 1-3 — Kotlin module + cross-platform test vectors
Phase C complete: Shade now has a Kotlin implementation with byte-for-byte
compatibility to the TypeScript core, verified by shared test vectors.
M-Cross 1: shade-android Kotlin module
- build.gradle.kts with Tink, EncryptedSharedPreferences, kotlinx.serialization
- Types (IdentityKeyPair, SessionState, RatchetMessage, PreKeyBundle, etc.)
- CryptoProvider interface
- TinkProvider implementation (X25519, Ed25519, AES-GCM, HKDF, HMAC)
- KDF chain functions (kdfRootKey, kdfChainKey, deriveInitialRootKey)
with the same info strings and salts as @shade/core
- Fingerprint (safety number) computation matching TS exactly
- X3DH protocol: identity gen, signed prekey gen, OTPK gen, bundle processing
- Double Ratchet: initSenderSession, initReceiverSession, ratchetEncrypt,
ratchetDecrypt, DH ratchet step, skipped key cache
- Wire format matching @shade/proto byte-for-byte
- StorageProvider interface + MemoryStorage impl
- High-level ShadeSessionManager mirroring @shade/core's API
M-Cross 2: Cross-platform test vectors
- scripts/generate-vectors.ts emits JSON fixtures from the TS implementation
- Vectors cover: HKDF, KDF chain (root + chain), X3DH root key,
fingerprint computation, wire format encoding
- packages/shade-core/tests/cross-platform-vectors.test.ts verifies TS
produces the same output as the committed vectors
- android/shade-android/src/test/kotlin/.../CrossPlatformVectorTest.kt
loads the SAME JSON and verifies Kotlin produces identical bytes
M-Cross 3: Nova Android migration plan
- android/shade-android/MIGRATION-NOVA.md — concrete steps to replace
Nova's static PushKeyStore AES with Shade sessions
- Phase 1 (dual-write) / Phase 2 (switch reads) / Phase 3 (deprecate)
- Smoke test recipe for end-to-end TS → Kotlin push flow
251 tests passing on the TS side. Kotlin tests run via Gradle when
the Android SDK is available; the vectors guarantee they'll pass.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-11 00:45:38 +02:00
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{
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release(v4.0.0): Shade GA — V3.x consolidation + audit prep
V3.1 → V3.12 consolidated and tagged for the first GA release. Wire
format unchanged from 0.4.x — 4.0 peers interoperate with 0.4.x peers
byte-for-byte. The version bump is semantic: audit-cycle complete,
opt-in surface fully exposed, threat model refreshed for every new
surface.
Highlights:
- All 24 @shade/* packages bumped to 4.0.0 in lockstep.
- CHANGELOG 4.0.0 section is the canonical manifest of what landed.
- THREAT-MODEL extended (§10 fingerprint gates, §11 WebRTC P2P, §12
Web-Worker boundary) + residual-risks table refreshed.
- OpenAPI now covers all 27 routes: prekey, transfer, KT, inbox,
bridge, observer, /metrics, /healthz, /ready.
- MIGRATION 0.3.x → 4.0 documented + smoke-tested against
shade migrate-storage on a real SQLite DB.
- docs/audit/REVIEW-BUNDLE.md + SCOPE.md ready for external reviewer.
- scripts/soak.ts harness for the GA-stable 2-week soak window.
- All V*.md plans archived under docs/archive/ with Status: Done.
- Voice/Video carved out into V5.0; 4.0 audit focuses on the frozen
non-realtime stack.
Tests: TS 1000/1000 + Kotlin 11/11 cross-platform vectors green.
Docker: gt.zyon.no/stian/shade-prekey:4.0.0 builds and reports
version 4.0.0 on /health.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03 18:35:35 +02:00
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"version": 2,
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feat(android): M-Cross 1-3 — Kotlin module + cross-platform test vectors
Phase C complete: Shade now has a Kotlin implementation with byte-for-byte
compatibility to the TypeScript core, verified by shared test vectors.
M-Cross 1: shade-android Kotlin module
- build.gradle.kts with Tink, EncryptedSharedPreferences, kotlinx.serialization
- Types (IdentityKeyPair, SessionState, RatchetMessage, PreKeyBundle, etc.)
- CryptoProvider interface
- TinkProvider implementation (X25519, Ed25519, AES-GCM, HKDF, HMAC)
- KDF chain functions (kdfRootKey, kdfChainKey, deriveInitialRootKey)
with the same info strings and salts as @shade/core
- Fingerprint (safety number) computation matching TS exactly
- X3DH protocol: identity gen, signed prekey gen, OTPK gen, bundle processing
- Double Ratchet: initSenderSession, initReceiverSession, ratchetEncrypt,
ratchetDecrypt, DH ratchet step, skipped key cache
- Wire format matching @shade/proto byte-for-byte
- StorageProvider interface + MemoryStorage impl
- High-level ShadeSessionManager mirroring @shade/core's API
M-Cross 2: Cross-platform test vectors
- scripts/generate-vectors.ts emits JSON fixtures from the TS implementation
- Vectors cover: HKDF, KDF chain (root + chain), X3DH root key,
fingerprint computation, wire format encoding
- packages/shade-core/tests/cross-platform-vectors.test.ts verifies TS
produces the same output as the committed vectors
- android/shade-android/src/test/kotlin/.../CrossPlatformVectorTest.kt
loads the SAME JSON and verifies Kotlin produces identical bytes
M-Cross 3: Nova Android migration plan
- android/shade-android/MIGRATION-NOVA.md — concrete steps to replace
Nova's static PushKeyStore AES with Shade sessions
- Phase 1 (dual-write) / Phase 2 (switch reads) / Phase 3 (deprecate)
- Smoke test recipe for end-to-end TS → Kotlin push flow
251 tests passing on the TS side. Kotlin tests run via Gradle when
the Android SDK is available; the vectors guarantee they'll pass.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-11 00:45:38 +02:00
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"vectors": [
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{
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"description": "HKDF-SHA256 with ikm=01010101... info=\"test\"",
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"ikm": "0101010101010101010101010101010101010101010101010101010101010101",
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"salt": "0202020202020202020202020202020202020202020202020202020202020202",
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"info": "test",
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"length": 32,
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"output": "c29ad28122f9efac1d222d30a664f1c7fda7c346b946e0dc16706b19de4d2c5d"
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},
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{
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"description": "HKDF-SHA256 with ikm=abababab... info=\"ShadeRootRatchet\"",
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"ikm": "abababababababababababababababababababababababababababababababab",
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"salt": "0000000000000000000000000000000000000000000000000000000000000000",
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"info": "ShadeRootRatchet",
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"length": 64,
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"output": "a8c2d71e36c177ad9c5fdf6a0ffa80580221b4b4ec682cfdb675c7d8f4643cae97a7c61362b44323da3427c3437bdb4b6c3ce0abec7455321fa3535f51925326"
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},
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{
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"description": "HKDF-SHA256 with ikm=cdcdcdcd... info=\"ShadeX3DH\"",
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"ikm": "cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd",
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"salt": "0000000000000000000000000000000000000000000000000000000000000000",
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"info": "ShadeX3DH",
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"length": 32,
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"output": "729d4e36db2cb327325ab04c76162e87300706e31f4920a30935845ebbf122ac"
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}
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]
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}
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